1
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

The angular acceleration of a body, moving along the circumference of a circle, is :

A
along the radius towards the centre
B
along the tangent to its position
C
along the axis of rotation
D
along the radius, away from centre
2
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

In a plane electromagnetic wave travelling in free space, the electric field component oscillates sinusoidally at a frequency of $$2.0 \times 10^{10} \mathrm{~Hz}$$ and amplitude $$48 ~\mathrm{Vm}^{-1}$$. Then the amplitude of oscillating magnetic field is : (Speed of light in free space $$=3 \times 10^{8} \mathrm{~m} \mathrm{~s}^{-1}$$ )

A
$$1.6 \times 10^{-8} \mathrm{~T}$$
B
$$1.6 \times 10^{-7} \mathrm{~T}$$
C
$$1.6 \times 10^{-6} \mathrm{~T}$$
D
$$1.6 \times 10^{-9} \mathrm{~T}$$
3
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

Two bodies of mass $$m$$ and $$9 m$$ are placed at a distance $$R$$. The gravitational potential on the line joining the bodies where the gravitational field equals zero, will be ($$G=$$ gravitational constant) :

A
$$-\frac{12 G m}{R}$$
B
$$-\frac{16 G m}{R}$$
C
$$-\frac{20 G m}{R}$$
D
$$-\frac{8 G m}{R}$$
4
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

In the figure shown here, what is the equivalent focal length of the combination of lenses (Assume that all layers are thin) ?

NEET 2023 Physics - Geometrical Optics Question 9 English

A
$$-40 \mathrm{~cm}$$
B
$$-100 \mathrm{~cm}$$
C
$$-50 \mathrm{~cm}$$
D
$$40 \mathrm{~cm}$$
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